Category: React

  • Conditional Validation in Yup

    Conditional Validation in Yup When it comes to form validation in JavaScript, Yup is a popular library that provides a simple and efficient way to define validation schemas. However, there are cases where we need to apply conditional validation based on certain conditions. In this blog post, we will explore different approaches to achieve conditional…

  • Refused to load the font ‘data:font/woff…..’it violates the following Content Security Policy directive: “default-src ‘self’”. Note that ‘font-src’

    Refused to load the font ‘data:font/woff…..’it violates the following Content Security Policy directive: “default-src ‘self’”. Note that ‘font-src’ If you have encountered the error message “Refused to load the font ‘data:font/woff…..’it violates the following Content Security Policy directive: ‘default-src ‘self”. Note that ‘font-src’”, you are not alone. This error is related to the Content Security…

  • How to use lifecycle method getDerivedStateFromProps as opposed to componentWillReceiveProps

    How to Use Lifecycle Method getDerivedStateFromProps as Opposed to componentWillReceiveProps When working with JavaScript, specifically in the context of React, it’s important to understand the lifecycle methods available to you. In this article, we will explore the differences between the deprecated componentWillReceiveProps method and the newer getDerivedStateFromProps method. We’ll also provide code snippets to demonstrate…

  • react useEffect comparing objects

    React useEffect: Comparing Objects One common challenge faced by React developers is comparing objects in the useEffect hook. Since objects are reference types in JavaScript, a simple equality check using === or == will not work as expected. In this blog post, we will explore different approaches to compare objects in React’s useEffect hook. Approach…

  • React 18 TypeScript children FC

    React 18 TypeScript children FC React 18 introduces a new feature called “children FC” which allows you to define the type of children in a functional component. This is particularly useful when working with TypeScript as it provides better type safety and helps catch potential errors early in the development process. In previous versions of…

  • Target another styled component on hover

    Target another styled component on hover When working with styled components in JavaScript, you may come across situations where you need to target another styled component when hovering over a specific element. This can be achieved using various approaches. Let’s explore a few solutions to this problem. Solution 1: Using CSS sibling selectors One way…

  • react button onClick redirect page

    React Button onClick Redirect Page When working with React, you may come across a situation where you need to redirect the user to another page when a button is clicked. In this blog post, we will explore different approaches to achieve this functionality. Approach 1: Using React Router If you are already using React Router…

  • How is ESLint integrated into Create React App?

    How is ESLint integrated into Create React App? When working with JavaScript, it is important to maintain code quality and adhere to best practices. One popular tool for achieving this is ESLint, a pluggable linting utility that helps identify and fix common errors and coding style issues. In this article, we will explore how ESLint…

  • Where’s the connection between index.html and index.js in a Create-React-App application?

    Where’s the connection between index.html and index.js in a Create-React-App application? If you’re new to Create-React-App (CRA) or React development in general, you might be wondering where the connection lies between the index.html and index.js files in a CRA application. In this article, we’ll explore the relationship between these two files and how they work…

  • Is there an option to show all test descriptions when I run jest tests?

    When running Jest tests, it can be helpful to see all the test descriptions in order to get a better understanding of what each test is doing. By default, Jest only shows the test descriptions for the tests that are currently running or have failed. However, there are a few options available to show all…